Woo commerce Multivendor & Shipping Classes

Hello,

We have 3 Shipping classes available on our store. Free Shipping, Canada Post and Shiptime. Specific class has been selected on each product. But when we check a product it is showing all shipping methods.

For example a product abc has a shipping class Canada post. But in checkout it is showing Canada post and shiptime options. If a product doesn’t have any shipping class or free shipping it is not showing Free shipping but showing Shiptime options. Plz look into it. Here are some products which have unique classes selected.

https://komforthealth.ca/hollister-8770-drainable-pouch-clamp/ (Free Shipping)
https://komforthealth.ca/leukoplast-soft-white/ (Canada Post)
https://komforthealth.ca/ventura-3-dlx-scooter/ (Ship time)

But it is not working plz assist me configuring these shipping methods.

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